Question

Last factor question!
Factor completely.

3x3 – 48x

Answer 1

i thnk its 3x(x – 16)

Answer 2

It should be x^2 - 16 not x - 16

Answer 3

3x^3 - 48x = 3x(x^2 - 16) = 3x(x - 4)(x + 4)
One of the basic algebraic identity
a^2 - b^2 = (a + b)(a - b)

Answer 4

Oh well its out of these answers A.
3x(x – 4)(x + 4)

B.
3x(x – 4)(x – 4)

C.
3(x + 4)(x – 4)

D.
3x(x – 16)

Answer 5

I see now thanks